"Manned space flight is costly and dangerous. Moreover, the recent success of a series of unmanned space probes and satellites has demonstrated that a great deal of useful information can be gathered without the costs and risks associated with sending men and women into space. Therefore, we should invest our resources in unmanned space flight."
The author here claims that we should invest our resources in unmanned space mission rather than sending men or women into space as it is costly and risky. Stated in this way, author failed to provide many key pieces of evidence and make many unwarranted assumptions to arrive at this conclusion.We have to look depper into these assumptions and missing validation data to prove that the claim made by author does not hold completly due to following flaws.
Firstly, the author states in the first like that manned space flight is costly and dangerous. But, this statement is completely based on the assumption that as and more manned missioned are accomplised the cost and riskyness of manned mission may go down. It may be the case that as manned mission had only started to become common in last couple of decades compared to unnmaned mission which have been undertaken from many dacades by many countries, so they are costlier and risky. But, with more and more manned mission the cost as well as riskyness may become equable or lesser with unnmanned mission and also the cost can become same or lesser with mass production of equipments/rockets required to carry a manned mission.
Secondly, the author taks about the success of series of unmanned space probes and satellities to support his claim. But, here also he takes the assumption that manned mission are less successfull than these unnmanned mission without stating any data points to support these. Also, author should first study if manned and unmanned mission can be equable or not? There are many cases where situations can look similar but depper study reveals that there are many underlying differences.And due to these it is wrong make such correlation without any research data.
Lastly, author claims that great deal of useful information can be gathered without the cost and risk associated with manned mission vs. unmmaned. Here author uses the word "great" as a very vague and subjective term and so cannot be trusted fully while suppporting his claim. It may be the case that yes, unmanned mission had been successful to collect amny vital information but without discussion the cabilities of manned mission vs. unmanned mission, it will be wron to derive at the conclusion that unmanned mission would be able to complete all tasks required in a space exploration mission. There may be many cases where decision making capability of men would be required to execute a task and unmmaned robots won'tbe able to provide us with equyable results.
In conclusion, based on the above there flaws discussed above and underlying assumptions made by author without provide us with addition research data and numbers, it would not be able to reach a conclusive decision. If author would have stated all the required adata and research that he considered while making these assumptions then we could have arrive at an outcome.
Grammar and spelling errors:
Line 1, column 297, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: We
...ssumptions to arrive at this conclusion.We have to look depper into these assumpti...
^^
Line 9, column 486, Rule ID: SENTENCE_WHITESPACE
Message: Add a space between sentences
Suggestion: And
...t there are many underlying differences.And due to these it is wrong make such corr...
^^^
Line 17, column 228, Rule ID: IF_WOULD_HAVE_VBN[1]
Message: Did you mean 'had stated'?
Suggestion: had stated
... reach a conclusive decision. If author would have stated all the required adata and research tha...
^^^^^^^^^^^^^^^^^
Line 17, column 351, Rule ID: HAVE_PART_AGREEMENT[1]
Message: Use past participle here: 'arrived'.
Suggestion: arrived
...ng these assumptions then we could have arrive at an outcome.
^^^^^^
Transition Words or Phrases used:
also, but, first, firstly, if, lastly, look, may, second, secondly, so, then, well, while, in conclusion, as well as
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 21.0 19.5258426966 108% => OK
Auxiliary verbs: 18.0 12.4196629213 145% => OK
Conjunction : 25.0 14.8657303371 168% => OK
Relative clauses : 14.0 11.3162921348 124% => OK
Pronoun: 36.0 33.0505617978 109% => OK
Preposition: 59.0 58.6224719101 101% => OK
Nominalization: 11.0 12.9106741573 85% => OK
Performance on vocabulary words:
No of characters: 2439.0 2235.4752809 109% => OK
No of words: 482.0 442.535393258 109% => OK
Chars per words: 5.0601659751 5.05705443957 100% => OK
Fourth root words length: 4.68556276237 4.55969084622 103% => OK
Word Length SD: 2.64298497349 2.79657885939 95% => OK
Unique words: 223.0 215.323595506 104% => OK
Unique words percentage: 0.46265560166 0.4932671777 94% => More unique words wanted or less content wanted.
syllable_count: 763.2 704.065955056 108% => OK
avg_syllables_per_word: 1.6 1.59117977528 101% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 6.24550561798 96% => OK
Article: 3.0 4.99550561798 60% => OK
Subordination: 2.0 3.10617977528 64% => OK
Conjunction: 1.0 1.77640449438 56% => OK
Preposition: 2.0 4.38483146067 46% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 17.0 20.2370786517 84% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 28.0 23.0359550562 122% => The Avg. Sentence Length is relatively long.
Sentence length SD: 52.7605415105 60.3974514979 87% => OK
Chars per sentence: 143.470588235 118.986275619 121% => OK
Words per sentence: 28.3529411765 23.4991977007 121% => OK
Discourse Markers: 6.82352941176 5.21951772744 131% => OK
Paragraphs: 5.0 4.97078651685 101% => OK
Language errors: 4.0 7.80617977528 51% => OK
Sentences with positive sentiment : 7.0 10.2758426966 68% => OK
Sentences with negative sentiment : 6.0 5.13820224719 117% => OK
Sentences with neutral sentiment: 4.0 4.83258426966 83% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.26119406528 0.243740707755 107% => OK
Sentence topic coherence: 0.110701224513 0.0831039109588 133% => OK
Sentence topic coherence SD: 0.101864304502 0.0758088955206 134% => OK
Paragraph topic coherence: 0.141672057564 0.150359130593 94% => OK
Paragraph topic coherence SD: 0.081583064072 0.0667264976115 122% => OK
Essay readability:
automated_readability_index: 16.6 14.1392134831 117% => OK
flesch_reading_ease: 43.06 48.8420337079 88% => OK
smog_index: 8.8 7.92365168539 111% => OK
flesch_kincaid_grade: 14.2 12.1743820225 117% => OK
coleman_liau_index: 12.36 12.1639044944 102% => OK
dale_chall_readability_score: 8.47 8.38706741573 101% => OK
difficult_words: 105.0 100.480337079 104% => OK
linsear_write_formula: 13.5 11.8971910112 113% => OK
gunning_fog: 13.2 11.2143820225 118% => OK
text_standard: 14.0 11.7820224719 119% => OK
What are above readability scores?
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Rates: 66.67 out of 100
Scores by essay e-grader: 4.0 Out of 6
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.